Red light has a _____ frequency and a _____ wavelength than ultraviolet rays.

• A. lower; shorter
• B. lower; longer
• C. higher; shorter
• D. higher; longer

Answer: (B)

Verified step by step guidance

1. Recall the relationship between frequency, wavelength, and the speed of light, which is given by the equation \(c = \lambda \nu\), where \(c\) is the speed of light, \(\lambda\) is the wavelength, and \(\nu\) is the frequency.
2. Understand that the speed of light \(c\) is constant in a vacuum, so frequency and wavelength are inversely proportional: as wavelength increases, frequency decreases, and vice versa.
3. Recognize that red light is at the lower-energy end of the visible spectrum, which means it has a longer wavelength compared to ultraviolet (UV) rays, which are higher energy and have shorter wavelengths.
4. Since red light has a longer wavelength than UV rays, and frequency is inversely proportional to wavelength, red light must have a lower frequency than UV rays.
5. Therefore, the correct description is that red light has a lower frequency and a longer wavelength than ultraviolet rays.